1-[(1R,3R,4S,5R)-3-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-4-hydroxy-6-(1-pyrenylcarbonyl)-2-oxa-6-azabicyclo[3.2.0]hept-1-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(1R,5R,7R,8S)-5-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-2-(1-pyrenylcarbonyl)-6-oxa-2-azabicyclo[3.2.1]oct-8-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

3-(Phenylmethyl)-1-(2,3,5-tri-O-acetyl-β-L-ribofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-2-methyl-5-O-(1-oxotetradecyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(4-C-Azido-3-O-benzoyl-2,5-dideoxy-5-iodo-2-methyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

Benzimidazole, 5,6-dichloro-2-ethyl-1-β-D-ribofuranosyl-

5-Methyl-1-[(1R,5R,7R,8S)-8-(phenylmethoxy)-5-[(phenylmethoxy)methyl]-2,6-dioxa-3-azabicyclo[3.2.1]oct-7-yl]-2,4(1H,3H)-pyrimidinedione

N-Cyclopentyl-2',3'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-S-ethyl-5'-thioadenosine

5'-S-Methyl-N-(1S,2S,4R,5R,6S)-3-thiatricyclo[3.2.1.02,4]oct-6-yl-5'-thioadenosine

3-(Phenylmethyl)-1-(2,3,5-tri-O-benzoyl-β-L-ribofuranosyl)-2,4(1H,3H)-pyrimidinedione

3-(Phenylmethyl)-1-β-L-ribofuranosyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[(6aR,10R,10aS,11R)-tetrahydro-2,2,4,4-tetrakis(1-methylethyl)-8-(phenylmethyl)-6H-6a,10-(epoxymethano)-1,3,5,2,4-trioxadisilocino[7,6-d][1,2]oxazin-11-yl]-2,4(1H,3H)-pyrimidinedione

1-[(1R,5R,7R,8S)-5-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-8-hydroxy-3-(phenylmethyl)-2,6-dioxa-3-azabicyclo[3.2.1]oct-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(1R,5R,7R,8S)-8-Hydroxy-5-(hydroxymethyl)-3-(phenylmethyl)-2,6-dioxa-3-azabicyclo[3.2.1]oct-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(1R,5R,7R,8S)-8-Hydroxy-5-(hydroxymethyl)-2,6-dioxa-3-azabicyclo[3.2.1]oct-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[(1R,5R,7R,8S)-3-methyl-8-(phenylmethoxy)-5-[(phenylmethoxy)methyl]-2,6-dioxa-3-azabicyclo[3.2.1]oct-7-yl]-2,4(1H,3H)-pyrimidinedione

N-Bicyclo[2.2.1]hept-2-yl-5'-thioadenosine

N-Bicyclo[2.2.1]hept-2-yl-5'-S-(2-fluorophenyl)-5'-thioadenosine

N-Bicyclo[2.2.1]hept-2-yl-5'-S-ethyl-5'-thioadenosine

N-Bicyclo[2.2.1]hept-2-yl-2',3'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-S-propyl-5'-thioadenosine